Finding the Fourth Proportional to 42,146.33, 63,227.69 and 12,563.51

Step by Step Solution

1. Step 1: Write the proportion equation
   42,146.33 : 63,227.69 = 12,563.51 : x
2. Step 2: Convert to fraction form
   42,146.33/63,227.69 = 12,563.51/x
3. Step 3: Cross multiply
   42,146.33x = 63,227.69 × 12,563.51
4. Step 4: Simplify right side
   42,146.33x = 794,361,383.75
5. Step 5: Solve for x
   x = 794,361,383.75/42,146.33
6. Step 6: Final answer
   x = 18,847.70